Technical Product Specification

Hardware Intel® RAID Controller RS2WC080 and RS2WC040 TPS
Revision 1.0
Intel Order Number E64400-001
8
2.3.3 NVSRAM
A 32-KB NVSRAM is used to store disk and drive setup information.
2.3.4 SAS / SATA Connectors
The Intel
®
RAID Controller RS2WC080 provides two internal SFF8087 SAS / SATA signal
connectors. The Intel
®
RAID Controller RS2WC040 provides one internal SFF8087 SAS / SATA
signal connectors. The SFF8087 connector provides support for four SAS / SATA ports. The
sideband signals are configured to adhere to the SFF-8485 Specifications for SGPIO support.
Figure 5 SAS/SATA Connectors
2.3.4.1 SAS / SATA Connector Pin-out
Signal names are with respect to the host. The device connected to the host reverses the signal
names. Transmit pins connect to receive pins on the other device. The SAS / SATA connector is
keyed at pin 1. These pin-outs for the serial ATA connector are not compatible with the legacy
PATA connector.
Table 1 SFF8087 Connector to Four Single-Port Connectors with one SGPIO Connector Pin-out
Controller Connector Pin-out Backplane Connector Pin-out Port
SFF-8087 Pin # Pin Definition Pin # Pin Definition
A1 GND 7 GND
A2 RX0+ 6 TX+
A3 RX0- 5 TX-
B1 GND 4 GND
B2 TX0+ 2 RX+
Port 0